Root irrigator



FIG. 1 is a top plan view of a root irrigator showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image of the left side shown; and

FIG. 4 is a front elevational view thereof. 

The ornamental design of a root irrigator, as shown and described. 